Georgia State University
Georgia State University: Hyper Physics: Hydrogen Energies and Spectrum
This site from Georgia State University gives information on the transitions of electrons between energy levels. The energy levels for electrons in the hydrogen atom are discussed. The Rydberg equation is stated and electron transitions...
Georgia State University
Georgia State University: Hyper Physics: Color
This site from Georgia State University discusses the location of visible light on the electromagnetic spectrum. Includes the wavelength values for various colors of light within the visible light spectrum.
NASA
Nasa: Spitzer Science Center: Code of Faraway Worlds
Under the heading, "Cracking the Code of Faraway Worlds" this site explores the uses of spectrum (and spectrograph, spectra) in planetary study. In addition to an image, a description of spectrum and its uses in space science is provided.
University Corporation for Atmospheric Research
Ucar: About Rainbows
This site from the University Corporation of Atmospheric Research provides an illustrated article about the phenomenon of rainbows.
University of California
Interactive Extreme Ultraviolet Skymap
A map showing a view of the night sky is given; sources of extreme ultraviolet light are marked. Visitors analyze the spectrum from these parts of the sky and attempt to determine which star type the spectrum most closely resembles.
University of Colorado
University of Colorado: Physics 2000: Balmer's Formula
A short description of a physics lab involving the determination of the wavelength of the four spectral lines in the hydrogen emission spectrum. Perhaps the most important part of the page is the picture of the spectrometer.
University of Colorado
University of Colorado: Physics 2000: Temperature and Absolute Zero
A thorough, multipage discussion of color and color television sets that explains how an image is formed on the television using red, green, and blue light. Understandable discussion, excellent graphics, and many interactive Java applets.
University of Colorado
University of Colorado: Physics 2000: Einstein's Legacy: Microwave Ovens
A series of pages that explain how microwave radiation is utilized by ovens to cook food. Includes several Java applets.
Simon Fraser University
Chem1 Virtual Textbook: What Are Line Spectra?
Acting as part of an overview on quantum theory, this section of the site answers the question, what are line spectra? In addition to the definition and a discussion of related terms, the site also discusses how line spectra are organized.
Simon Fraser University
Chem1 Virtual Textbook: Spectra and Interaction of Light and Matter
Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses continuous spectra and line spectra using examples and charts to assist in the understanding.
Wikimedia
Wikipedia: Spectral Line
Wikipedia offers information on spectral line, a dark or bright line in an otherwise uniform and continuous spectrum.
Friesian School
Proceedings of the Friesian School/the Quantacized Atom
A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...
Center of Science and Industry
Cosi Columbus: Coffee Filter Rainbows
Science experiment that demonstrates chromotography. Includes full list of materials, procedures, and scientific explanation of what happens with different colors when they are soaked with water.
Scholastic
Scholastic: Study Jams! Science: Energy, Light and Sound: Light
A video and a short quiz on the basic concepts and vocabulary for understanding light energy.
Exploratorium
Exploratorium: Science Snacks: Cd Spectroscope
Analyze light by creating a CD spectroscope in this activity. See the whole spectrum of light with the spectroscope.
NASA
Nasa: Imagine the Universe: What's the Frequency, Roy G. Biv
In this very detailed lesson plan from NASA, students investigate wavelength and frequency within the electromagnetic spectrum.
TeachEngineering
Teach Engineering: Using a Fancy Spectrograph
Students use the spectrograph from the "Building a Fancy Spectrograph" activity to gather data about different light sources. Using the data, they make comparisons between the light sources and make conjectures about the composition of...
TeachEngineering
Teach Engineering: A Spectral Mystery
Students use the spectrograph from the "Building a Fancy Spectrograph" activity to gather data about light sources. Using their data, they make comparisons between different light sources and make conjectures about the composition of a...
CK-12 Foundation
Ck 12: Physical Science: Electromagnetic Spectrum
[Free Registration/Login may be required to access all resource tools.] Covers electromagnetic radiation and its properties, and the electromagnetic spectrum.
NASA
Nasa: Mission: Science: Electromagnetic Spectrum: Infrared Waves
Infrared light lies between the visible and microwave portions of the electromagnetic spectrum. Infrared light has a range of wavelengths, just like visible light has wavelengths that range from red light to violet.
Utah Education Network
Uen: I'll Build You a Rainbow
In these three activities, students explore the colors of the spectrum in white light.
TeachEngineering
Teach Engineering: The Energy of Light
For this introduction to light energy, students learn about reflection and refraction as they learn that light travels in wave form. Through hands-on activities, they see how prisms, magnifying glasses and polarized lenses work. They...
NASA
Nasa: Electromagnetic Spectrum: Radio Waves
Radio waves have the longest wavelengths in the electromagnetic spectrum. This NASA article discusses AM, FM, TV, cell phone, as well as radio astronomy, which all use this technology.
Optical Society
Optical Society of America: Optics for Kids: What Causes Rainbows?
An experiment to demonstrate how to make a rainbow and why they form.